Spanner



FIG. 1 is a perspective view of a spanner showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown are included for the purpose of illustrating portions of the spanner that form no part of the claimed design. 

CLAIM The ornamental design for a spanner, as shown and described. 